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    TFPExprIdentifierDef.OnGetVariableValueCallBack

    Callback property for variable value evaluation

    Declaration

    Source position: fpexprpars.pp line 545

    public property OnGetVariableValueCallBack: TFPExprVariableCallBack;

    Description

    The OnGetVariableValueCallBack property holds a callback function that is called when the identifier represents a variable and its value needs to be retrieved. The callback returns the current value of the variable.